[PATCH v2] x86/CPU/AMD: Clear RDRAND CPUID bit on AMD family 15h/16h

From: Tom Lendacky There have been reports of RDRAND issues after resuming from suspend on some AMD family 15h and family 16h systems. This issue stems from a BIOS not performing the proper steps during resume to ensure RDRAND continues to function properly. RDRAND support is indicated by CPUID

Re: [PATCH] x86/CPU/AMD: Clear RDRAND CPUID bit on AMD family 15h/16h

On 8/15/19 2:21 AM, Borislav Petkov wrote: > On Wed, Aug 14, 2019 at 09:17:41PM +0000, Lendacky, Thomas wrote: >> From: Tom Lendacky >> >> There have been reports of RDRAND issues after resuming from suspend on >> some AMD family 15h and family 16h systems. This i

Re: Non-random RDRAND Re: [PATCH] x86/CPU/AMD: Clear RDRAND CPUID bit on AMD family 15h/16h

On 8/14/19 6:24 PM, Pavel Machek wrote: > On Wed 2019-08-14 21:17:41, Lendacky, Thomas wrote: >> From: Tom Lendacky >> >> There have been reports of RDRAND issues after resuming from suspend on >> some AMD family 15h and family 16h systems. This issue stems from BIOS &

[PATCH] x86/CPU/AMD: Clear RDRAND CPUID bit on AMD family 15h/16h

From: Tom Lendacky There have been reports of RDRAND issues after resuming from suspend on some AMD family 15h and family 16h systems. This issue stems from BIOS not performing the proper steps during resume to ensure RDRAND continues to function properly. RDRAND support is indicated by CPUID Fn